#myModal{
    display: none;
    position: fixed;
    z-index:1;
    left:0;
    top:0;
    width: 100%;
    height:100%;
    overflow: auto;
    background:rgba(0,0,0,0.5);
   }
   #myModal .modal{
    width: 500px;
    height:300px;
    position: relative;
    top:50%;
    left:50%;
    margin-top: -150px;
    margin-left: -250px;
    animation:animate 1s;
   }
   .modal .modal-header{
    height:50px;
    background:white;
    color: #000;
    line-height:50px;
    border-bottom: none;
   }
   .modal .modal-header p{
    display: inline-block;
    margin:0;
    position: absolute;
    left: 20px;
   }
   .modal .modal-header .close{
    position: absolute;
    right:20px;
    font-size: 20px;
    cursor:pointer;
   }
   .modal .modal-content{
    background: white;
    height:200px;
    text-align: center;
    line-height: 200px;
    
   }
   .modal .modal-content textarea{
    width: 90%;
    height: 80%;
    border-color: rgb(71, 68, 63);
    resize: none;
    font-size: 16px;
    border-radius: 10px;
    padding: 10px;
    margin-top: 10px;
   }


   .modal .modal-footer{
    position: relative;
    height:40px;
    background: white;
   }
   /*添加动画*/
   @keyframes animate{
    from{top:0;opacity:0}
    to{top:50%;opacity:1}
   }